Improvement in attaching bits to braces



` Auger-Bits to Bit-Stocks;

UNITED STAT-ns PATENT OFFICE- N J OES' H. NELLIS, OF RICBMONDVILLE, NEWYORK.

IMPROVEMENT IN ATTACHING BITS TO BRACES.

Specification forming part of Letters Patent N o. 62,057, dated February12, 1867- To all whom it may concern:

Be it known that I, JOHN H. NELLIs, of Richmondville, in the county ofSchoharie and State of New York, have invented certain new and usefulImprovements in Connecting and do hereby declare that the following -isa full, clear, and exact description of the same, reference being had tothe 'accompanying drawings and the letters of reference marked thereon,making a part of this speccatOn.,

In the annexed drawings, A represents the auger-bit, which is of theordinarymanufacy ture, but having its shank D made somewhat y Y longerthan the usual length. A groove is made Within this shank. into which isinserted thel spring C, and which is rmly secured at the top portion ofthe shank. This spring distends from the bottom of the shank, where ismade a square notch in the spring, which of itself forms two shoulders.It will be observed that this spring has a small pad at its 3 end, whichis below the end of the' shank, and

below the bit-stock when the same is cony nected to the auger. This padis to operate the spring, so as to detach the stock when re- I quired.

B represents the bit-stock,'which, by means of its square opening, isplaced over the bitshank AD. Xrepresents a small opening near the bottomof the stock, and into which the spring catches. The auger is detachedfrom the stock by merely pressing the spring and slipping it out of theopening.`

, When the stock is attached to the-auger the two are iirmly andsecurely held together by means of the spring andvopening X between thepoints a to z. This device greatly sirnplies the bit-stock, and holdsthetwo together when in boring, as well as when the ,same is vbeingwithdrawn. Having thus. fully described my invention, what I claim asnew,and desire to secure by JOHN` H. `NELLIs.

two witnesses.

Witnesses:

, SEWELL LE VALLY, EMERY I). NELLIs.

